K 1500 Yukon XL 4WD V8-5.3L VIN T (2001)
20. Install the nuts (2) that secure the auxiliary HVAC module to the vehicle.
Tighten
Tighten the nuts to 9 N.m (80 lb in).
21. Install the air conditioning lines (2, 3) and the nut (4) to the auxiliary HVAC module.
Tighten
Tighten the nut to 16 N.m (12 lb ft).
